734-398用簡便算灋怎麼算
734-398
=734-(400-2)
=734-400+2
=334+2
=336
35X28+70用簡便算灋怎麼算
35X28+70
=35X28+35X2
=35X(28+2)
=35X30
=1050
583-(483+29)用簡便算灋怎麼算
583-(483+29)
=583-483-29
=(583-483)-29
=100-29
=71
1.25×8.8簡便計算(用多種方法)
原式=1.25*(8+0.8)=10+1=11
475+254+361這道題用簡便算灋怎麼算?
361+361+475
(-0.25)除以(-2/3)*(-3/2)/*4/9等於?
-0.25
24分之幾=0.625=幾分之幾=20分之幾=30÷幾
24分之15 =0.625=8分之5=20分之12.5 =30÷48
化簡比35:56 7.2:0.24 0.625
35:56 =5:8
7.2:0.24=30:1
20分之3:5分之6=1:8
5分之3:0.625=24:25
35:()=0.625=()/24=1/()=():()
35:(56)=0.625=(15)/24=1/(8/5)=(5):(8)
3.35:()=0.625=40分之()=()÷24=():()
3.35:(56)=0.625=40分之(25)=(15)÷24=(5):(8)